Sole-edge-burnishing machine.



` No. 740,602. PATENTBD 00T. e, 190s.v

c. P. STAGKPOLE.

SOLE EDGE BURNISHING MACHINE.

APPLloATIoN FILED MAR. 2a, 1902.

H0 MODEL.

PATENT'ED UGT. 6,- 1.90.3.

E' C. E. STAGKEULE.

soLE EDGE .EEEMEEING MAEHINE.

APPLIOATQE BIERE MAR. 28. 1902.

3 SHEETS-SHEET y.3`

N0 MODEL.

y i Y xmwomv .114: snm PETERS ca. mom-uma. vusmvumm. o, c;

UNITED S'rivinsn Patented octoter e", 190e.

'PATENT OFFICE.

soLE-EocE-BuRNlsl-imc MACHINE.

SPECIFICATION forming part of Letters Patent No. 740,602, dated OctoberY6, 1903. Application filed March 28. 1902. Serial No. 100.396. (Nomodel.)

To all whom it may concern:

Y Betknownthat I, CHARLESF. S'rAo-Kronn,

a citizen of the United States, residing at Lynn, in the county of Essexand State of .Massachusetts, have invented new and useful Improvementsin Sole-Fdge-Burnishing Machines, (Case 13,) of which the following is aspecification.

This invention relates to machines for bur-v l nishing the edges of thesoles of boots and shoes.

The object of the` invention is to provide al compact, durable,quick-running, and easily-' operated machine of the character described;

and, further, the object ofthe invention is to provide a twinsole-edge-hurnishing machine in which the burnishing mechanism of eachhead of the machine is operated from a common driving-shaft, saiddriving-shaftbeingf located, preferably, in a closed chamber con taininga body of oil which keeps the principal working parts thoroughlylubricated and n overcomes any tendency to heating or friction due tothe high speed of said working parts.

The object of the invention is again to provide a certain improvedconstruction whereby the fore-part and shank hurnishing iron may be usedupon the same head and one substituted in place of the other at theworking point with great ease and rapidity.

The object of the invention is finally to provide a machine soconstructed that heat will be imparted to the edge-burnishing irons byVa rotary friction device, and thus do away with the unsatisfactory meanscommonly in use for heating said irons-vin., bya gas-jet. Theinventionzconsists, in a machine of the character described, of arocker-frame, a rotary tool-carrier j ourn aled thereon, and mech anismto heat and rotate said tool-carrier.

The invention again consists in the instrumentalities hereinhefore setforth, in combination with means to iock said tool-carrier to' saidligure.

sists in a rocker-frame, a rotary tool-carrier journaled thereon, Aaclutch toilock said toolcarrier to said rocker-frame, mechanism to heatand rotate said tool-carrier, together with the edge -lournishing toolmounted thereon, and means to throw said rotary and heating mechanismout of connection with said'toolcarrier.

The invention inal'ly consists in the combination and arrangement ofparts'set forth iin the following specification and particularly pointedout in the claims thereof.

Referring to the drawings, Figure 1 is an enlarged front view of thehead of my improved twin sole-edge-bnrnishin g machine with themechanism thereon, the left hand portion thereof being shown as alongitudinal vertical central section and the right-hand portion beingshown in elevation. Fig. 2 is a front view ofthe ri gilt-hand side ofthe machine, showing the mechanism by which the tool-carrier is rotated,heated, and thrown out of connection with said tool-carrier. Fig. 3 is atransverse section taken on 'line 3 3 of Fig. 1 looking toward the rightin .said iigure, the bearings being broken away to save space in thedrawings. Fig. 4 is a detail section taken on line t i of Fig. 2 lookingtoward the left in said gure. .Fig 5 is a detail front elevation of theclutch. Fig. 6 is an underneath plan of the rotarytool-carrier. Fig. 6lisatransverse section taken on line 6 6, Fig. 6. Fig. 7 is V,a detailsection through the rotary tool-carrier and clutch, taken on line 7 7 ofFig. 1, viewed in the direction of the arrow b. Fig. S is a transversesection through the toolcarrier and clutch, taken on line S S of Fig. 1,viewed in the direction of the arrow c in said ligure. Fig. 9 isv anenlarged central section of the pintle-cap, with spring-cap attachedthereto. Fig. 10 is a front elevation of the hurnishingiron-supportingpintle viewed in the Vsame direction asin Fig. l, at the left-hand sideof Fig. 1l is an end elevation, viewed from the right ofFig. 10, of saidburnishing-iron-supporting pintle. Fig. 12 is an enlarged transversesection through one of the burnishing-irons and the pintle and rotarytoolcarrier, upon which said burnishingiron is supported, taken on linel2 12 ofFig. l. Fig. 13 is a perspective view of one of the vzoohurnishing-irons. Y' Fig. 14 is a side elevation tls of the pivotalbearing for the friction-roll which imparts rotary movement to thetoolcarrier, as viewed from the left of Fig. 2.

-Like numerals refer to like parts throughout the several views of thedrawings.

The mechanism hereinafter described for rotating the tool-carrier, forrocking the frame upon which said tool-carrier is journaled, and thegeneral construction of the machine is substantially the same as thatshown and described in another application made by me of even dateherewith, the present machine differing from said machine in the mannerof heating the edge and shank burnishing irons. The mechanism in thepresent. instance by which the tool-carrier is rotated also suppliesfrictional heat to said toolcarrier and through said toolcarrier to theburnishing-irons supported thereon, said mechanism remaining normally incontact with a portion of the said tool-carrier and by its rotationimparting frictional heat thereto. Means are also supplied for throwingthe rocker-frame out of contact or operative connection with themechanism which rocks said rocker-frame, and also, preferablysimultaneously,removes the frictional rotating mechanism from connectionwith the tool-carrier.

In the drawings, 27 is the head, which consists of a hollow standard 28and a casing 29, integral with said standard. The casing 29 isrectangular in shape and is provided with achainber 30, adapted tocontain a body of oil 31, said chamber being closed at the top by aplate 32. The right and left hand side walls 33 33 of the casing29,-.Fig- 2, have plates 34 rigidly fastened'thereto andA constitute, infact, a portion of the walls of said casing,

each of said plates 34 being provided with abearing-sleeve 35, in whichis journaled the The rocker-frame 37 has an arm 38 fast to one end ofthe cylindrical shank 36, said arm 38 being provided with a hardened pin39, arranged to bear again st the cam-face 40,formed -upon the cam 41,said pin being held in contact with said cam-face by a spring 42,fastened to a stationary cross-shaft 43 upon the casing 29. The' spring42 may be adjusted to press with more or less force against the pin 39by means of the screw 44, screwthreaded in the casing 29 and lockedthereto byaloc'k-nut 45. The cam 4l is fast to a main driving-shaft 46,journaled to rotate. in bearc ings 47,provided in the walls of thecasing 29.

several oscillations to the arm 38 during oneA rotation of thedriving-shaft 46. In the present case I have illustrated the throws ofthe cam-face 40 as fourin number, but this number may be increased ordiminished if desirable.

:The rocker-frame 37`is provided at the endt upon the toolcarrier 50.

opposite to that at which the arm 38 is fastened with a curved arm 48,integral with the cylindrical shank 36 and having fastened thereto byscrew-threaded engagement a post 49, upon which is journaled a rotarytool-carrier 50. The tool-carrier 50 is held against motion lengthwiseof the post 49 by a collar 51, screw-threaded against a shoulder uponthe upper end of said post 49. The under face of the tool-carrier 50 isprovided with a transverse slot 53 to receive the clutch 54, said clutchbeing provided with two arms 55 55, arranged toslide in slots 56 56 uponopposite sides of a cross-bar 57, formed upon the outer end of the arm48 of the rocker-frame The arms 55 of the clutch 54 are normally held inthe slot 53,thus lookin g the toolcarrier to the rocker-frame by aspiral spring 58, one end of which bears against the collar 51, theotherend against a cap 59, screwedto the outer end ofa rod 60, said rodextending from said cap downwardly through the post 49 and having itslower end screwed into the clutch 54.

Upon the toolcarrier 50 are rotatably mounted two edge-burnishing ironsor tools 6l 6l,one of said tools being formed to burnish the edge of theshank portion of a shoesole and the other to b urnish the edge ot' thefore part of a shoe-sole. Each of the tools is mounted uponapintle62,Figs. 1 and 12. Said pintle is cylindrical in cross-section and hasVa slot 63 extending lengthwise thereof to receive a rectangularbearing-plate 64, formed The pintle 62 is held upon the plate 64 by apin 65, Fig. 1, arranged to slide in a hole 66, formed in the upper endof the pintle 62, the lower end of spring 68, one end of whichbearsagainst the upper end of said pin, the other against a depression69, formed in the front face of the burnishing-iron 6l. The cap 7l isheld upon the upper end of the pintle 62 by a screw 70, and the spring68 is held against said cap by a lock-nut 109, Fig. 9.

The iron 61 is provided with a hollow cylindrical shank 72, which isrotatably mounted upon the pintle 62 and is slotted lengthwise thereofat 73 to allow the iron to rock upon the pintle 62 to a limited extentwithout coming in contact with the plate 64 upon the tool-carrier 50. Itwill therefore be seen that the burnishing-tool 61 can rotate upon thepintle 62 to a limited extent in the direction of the arrow d, Fig. 12,and also that said tool can rock in a planev transverse to the edge ofthe shoe-sole 74 in the direction of the arrow e, the latter rockingmotion being rendered possible by the slot 63 in the pintle 62 beingrounded at its lower end, Fig. 10, so that said pintle can rock upon theplate 64,

`together with the tool 61, the spring 68 allowing the pin to yieldslightly inv order to accommodate the rocking of the pintle 62 y uponthe tool-carrier. If desirable, the spring- IOO pin 65 may be replacedbyapin or screw held rigidly in the pintle, so that the rocking motiontransversely ofthe shoe-sole in the direction of the arrow e, ashereinbefore set forth, would be eliminated. lt will be seen by theconstruction hereinbefore set forth that the pintle and the iron thereoncannot rock lengthwise of the edge of the shoe-sole, except as they arerocked bodily by the rocking motion of the frame 37.`

In Fig. l the shoe-sole 7i is indicated in dotted lines in the properrelation to the burnishing-tool 6l, the other burnishing-tool 6l beingthrown out of use by the rotation of the toolcarrier, as hereinbeforedescribed, and while out of use being located', as will be seen byreference to Fig. 2, at a point but y slightly removed from the axialcenter of the rocker-frame, .the obj ect of this location of the toolwhen not in operation being to reduce the momentum of the parts whichare rocked by the frame 37. The toolcarrier is rotated to bring thedifferent burnishingtools into and out of operation by a rotaryfrictiondisk 7 5, fast to a shaft 7 6, arranged to rotate in a bearing77said bearing in turn being provided with a shaft 7 S, arranged torockin a bearing 7 9, provided in the plate 34. Ro-

tary motion is imparted to the shaft 7 6 and disk 75 by a iiexiblerotary shaft 80, operatively connected thereto and to a shaft S1,arranged to rotate-in bearings 82 in the casing 29. Said shaft Sl has a'spiral gear 83 fast thereto and meshing into a spiral gear 84, formedupon the cam-blank 4l.

Normally the mechanism Afor rotating the tool-carrier, hereinbeforedescribed, together with the clutch, are inthe positions shown in Fig. lwith the rotary friction-disk '7 5 in engagement with a conical annularfriction-ring 85,'fast to the tool-carrier 50, said friction-disk beingkept in constant rotation and the upper edge of the periphery located inthe axial center f, Fig. l, of the carrier-frame 37, so that the pointupon the friction-ring 85 which is'in contact with the rotaryfriction-disk 75 is practically stationary at all times except whensaid-friction-ring and the tool-carrier are freed from the clutch, whichis accomplished by the operator pressing upon the cap '59, compressingthe spiral spring 58 and through the post 49 causing the clutch 5i to bewithdrawn from the slot 53 in-the tool-cac riergand said tool-carrier isthen rotated by I tially stationaryposition with relation thereto,

frictional heat will be generated, which will be transmitted through thering S5, forming vshown in Fig. l.

improved machine for burnishing the edges of soles to throw out ofaction one end of the -machine while the other continues in action,

and to do this an arm Sti/is provided pivoted at S7 to the frame-plate34. Said arm 86 is normally held in the position shown at the right handof Fig. l. It, now, it is desired to throw the rocker-arm out ofconnection with the cam by which it is rocked, as hereinbeforedescribed, and to remove the friction-disk 7 5 from contact with thering S5, the arm 86 is moved from the position shown at the right ofFig. l to that shown in 2, and in so doing a cam-shaped surface S8 uponthe rear face of said arm 86 encounters a laterally-projecting arm S9upon-the rocker-frame 37, tipping said rocker-frame and the arm 3S, fastthereto, backwardly from the position shown in Fig. l until the pin 39,fast to said arm 38, is removed from contact with the cam-f ace 40, thusthrowing out of motion the rocking connection of said carrier-arm, andsimultaneously the motion ofthe arm 86, hereinbefore described, causes acam-surface 90 upon the lower edge of said arm to come in contact withan arm 91, integral with the pivotal bearing 77, thus tipping saidpivotal bearing, together with the rotary disk thereon, from theposition shown in Fig l, at the right hand thereof, to the positionshown in Fig. 2, carrying the disk 75 away from the ring 85. A` spiralspring 92, contained ina hole formed in the frame-plate 34, keeps thefriction-disk 7 norrnallyV in contact with the friction-ring S5, as Itwill therefore be seen that by moving the arm 86 from the position shownin Fig. l to that shown in Fig.` 2 the rotary disk 7 5 is thrown out ofcontact with the ring S5 and the rocker-arm outof contact with the camby which it is rocked.

The tool-carrier 50.at the right of the inachine, Fig. l, is rotated bymeans of the shaft 81 through a flexible shaft (not shown) eX- actly asin the mechanism illustrated in section at the left of said Fig. l.

The cylindrical shank 36, the cams 40, gears 83 and 84, Vshaft 8l, andflexible shafts SOare allkept thoroughly lubricated from the body of oil3l contained in the closed chamberO, said oil being partly suspended inthe form-of vapor within said chamber and being carried by the arms 38along the cylindrical Shanks 36 in the bearing sleeves 35 and returningthrough a passage 105, provided upon the under side of the sleeve 35 andleading into a IOO IIO

IIS

plate 84, and emptying into the-chamber 30.

-A finger-piece 107 is provided at each end of the machine, by means ofwhich the operator guides and steadies the shoe in the operation ofburnishing, said finger-piece being adjustably fastened by means of abolt 108 to the frame-plate 34.

The friction-ring ,85 is formed of composition, largely of copper, andis divided into two parts, said parts being separated from each other byhardened-steel bearing-plates 96, arranged diametrically opposite eachother, the object of these bearing-plates being to form a hardenedsurface against which the friction-disk 7 5 may bear while the ring 85is stationary without wearing said ring away, as would be the case ifthe ring were a continuous piece of composition throughout its entireextent. The object of constructing the ring of copper is in order thatthe heat generated by the friction-disk may be readily transmittedthrough said ring to the burnishing-iron in operation upon the sole ofthe shoe.

The operation of the machine is as follows: The operator holds the shoein the position shown in dotted lines, Fig. 1, the edge of the sole 74being held against the lower face of the burnishing-tool (31. Afterburnishing the edge of the fore part of the sole the operator touchesthe cap 59, pushing the same downwardly and releasing the tool-carrierfrom the clutch, as hereinbefore described. Said tool-carrier, togetherwith the tools mounted thereon, is then carried 'through ahalf-rotation, carrying the shank-burnishin g iron in'to the position'formerly occupied by the forepartburnishing iron, as hereinbeforedescribed. This action of the substitution of one iron for the othertakes place almost instantaneously, so that the operator loses no timein changing from one iron to the other.

It will be seen that the pintle 62 and the liron thereon tip in thedirection of the arrow c, transversely f the shoe, upon a center nearthe lower end of said pintle, and as this rocking point is, in thefull-sized machine, near the edge of the iron it will be seen that saidrocking motion will be very sensitive and that the iron will adaptitself very quickly to any slight change in the position of the edge ofthe sole of the shoe or in the shape of said edge transversely thereof.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. In a sole-edge-burnishing machine, a rocker-frame, a rotarytool-carri er journaled thereon, and mechanism in frictional contactwith said tool-carrier to heat and rotate the same.

2. In a sole-edge-burnishing machine, a rocker-framea rotarytool-carrier journaled thereon, means to lock said tool-carrier to saidframe, and power-driven mechanism in friction al contact with saidtool-carrier to heat and rotate the same.

3. In. a sole-edge-burnishing` machine, a rocker-frame, a rotarytool-carrier j ournaled thereon, mechanism to heat and rotate saidtool-carrier, and means to throw said mechanism into and out ofconnection with said tool-carrier.

4:. In a sole-edge-burnishing machine, a rocker-frame, a rotarytool-carrier journaled thereon, a clutch to lock said toolcarrieragainst rotation with relation to said rockerframe, and mechanism infrictional contact with said tool-carrier to heat and rotate the same. p

5. In a sole-edge-burnishingA machine, a rocker-frame, a rotarytool-carrier j ournaled thereon, a clutch to lock said tool-carrier tosaid rocker-frame, mechanism to heat and rotate said toolcarrier, andmeans to throw said mechanism into and out of connection with saidtool-carrier.

6. In a sole-edge-burnishing machine, a rocker-frame, a rotarytool-carrier j ournaled thereon, and a rotary friction-roll engagingsaid tool -carrier imparting frictional heat thereto, and serving as ameans to rotate said tool-carrier.

7. In a solc-edge-burnishing machine, `a rocker-frame, a rotarytool-carriervjournaled thereon, a friction-ring fast to saidtool-carrier, and a rotary friction-roll engaging said friction-ringimparting frictional heat thereto, and serving as a means to rotate saidtoolcarrier.

8. In a sole-edge-burnishing machine, a rocker-frame, a rotarytool-carrier journaled thereon, a rotary friction-roll engaging saidtoolcarrier and imparting frictional heat thereto, and means to movesaid roll into and out of contact with said tool-carrier.

9.` In a sole-edge-burnishing machine, a rocker-frame, a rotarytool-carrier journaled thereon, a rotary friction-roll, and means tohold said friction-roll normally in contact with said tool-carrier.

10. In a sole-edge-burnishing machine, a rocker-frame, a rotarytool-carrier journaled thereon, a clutch to lock said tool-carrier tosaid rocker-frame, and mechanism to alternately rotate and impartfrictional heat to said tool-carrier.

11. In a sole-edge-burnishing machine, a rocker-frame, a rotarytool-carrier journaled thereon, a rotary friction-roll normally engagingsaid tool-carrier and imparting frictional heat thereto, a iieXibleshaft connected to said rotary friction-roll, and mechanism to rotatesaid flexible shaft.

12. In alsole-edge-burnishing machine, a rocker-frame, a rotarytool-carrier journaled thereon, a rotary friction -roll normallyengaging said tool-carrier and imparting frictional heat thereto, aiiexible shaft connected to said rotary friction-roll, and adrivingshaft operatively connected to rock 'said rocker-frame and rotatesaid iieXible shaft.

13. Ina sole-edge-burnishing machine, a

IIO

mechanisms from said tool-carrier and rockerframe` 1 16. In asoIe-edge-hurnishing machine, a rocker-frame, a rotary tool-carrierjournaled thereon, a rot-ary friction-roll normally in contact with saidtoolcarrier, a pivot-allysnpported hearing therefor, and an arm arrangedto rock said bearing and move said roh out of Contact with saidtool-carrier.

In testimony whereof I have hereunto set my hand in presence of tivosubscribing Witnesses.

CHARLES F. STAOKPOLE.

Vitnesses CHARLES S. GooDING, WILLIAM CLAUS.

